Roadbed construction for street railways and method of constructing the same



Dec. 3, 1929. w. P. DAY 1,738,043

BOADBED CONSTRUCTION FOR STREET RAILWAYS AND METHOD OF CONSTRUCTING THESAME Filed Sept. 15, 1928 2 Sheets-Sheet l .WIT

(16km 1mg Dec- 3, 1929. w. P. DAY 1,738,043

STRUCTION FOR STRE ROADBED ET RAILWAYS AND M HOD OF CONST TING THE SAMEFiled Sept. 1928 2 Sheets-5h99?. 2

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Patented Dec. 3, 1929 PATENT FWMEE WILLIAM P. DAY, Uit? CLEVELAND,HEIGHT OHIO, ASSGNOR TO THE INTERNATQNAL .L GMPAFZQ 0F CLEVELAND,

OHDS, A CORPORATION Ci DELBWARE RGADQCUED CGNSWRTICTN FR STREET RAILWAYSAND METHOD OF CONSTR'UCTING THE Application iiled `September rlfhisinvention relates to a road bed `for street or boulevard railways and to-a method of forming the same.

The main object `of the invention is to provide a road bed structure andmethod of forming the saine which will permit the rails to be removedfor replacement or repair With.- out disturbing` any portion of thetrack except that immediately adjacent the rails.

Another object of the invention is `to pro vide a road bed constructionin which the railsand rail supporting structure are rigidly and `lirmlyheld in place and in Which creeping of the rail is reduced to a minimum.

Another object of the invention is to provide a road bed construction ofthe character et forth in which the rail supporting memand the pavementbetween and adjacent e ails are interloched With each other in a mannerthat separation of the rail the paving and concrete base is pracyprevented.

nother object of the invention is to provide road bed construction ofthe charac ter described which will maintain the 'track in the properalignment and in which lthat portion of the road surface adjacent therails Wil4 not become broken as a result of heavy loads passing over therails.

i-i further object of the invention is to provide a road bedconstruction in which the rail clips may be tightened Without disturbingany portion of the road surface except zhat immediately adjacent therail clip to be tightened. o

n further object of the invention is to proride a road bed constructionof the character set forth employing a plurality of stringere or bafileplates extending along each rail in spaced parallel relation thereto andwhich maintains aline of cleavage between that portion of the road bedimmediately adjacent the rails and the remaining portion of the roadbed.

A further object of the invention is to provide a method of forming aroad bed construction providing a road surface having a pair of paralleltrenches in Which are firmly and rigidly secured a plurality of railsupporting members, then detachably securing fro ti SAME 15, 192s. sensino. 3065224.

the rails to said rail supporting members and then Vfilling the trencheswith a readily removable road forming umaterial whereby the rails may"be removed for replacement or ren pair Without disturbing the remainingportion of the `road surface.

Still another object of the invention is to provide a road constructionand method oi forming the same which will insure and provide a veryrigid type kof track foundation which can be laid With a minimum costand in which lower rails can be used on account of the gir-der strengthof the ftie structure.

Further and ymore limited objects of the invention Willappear as the`description pro ceeds and by reference to the accompanying drawings inwhich Fig. l isa fragmentary top plan view ofa portion of a road bedconstructed `in accordance avith my invention; Fig. 2 is a -verticalsectional view on the line 2-2 of Fig. l; Fig. 3 is a fragmentary topplan View of the road construction with the rail supporting .member inplace but before the rails have beensecured in place, and Fig 4 is avertical sectional View on the line -l-l of Fig. 3.

Referring snow to the drawings, thereference character l designates thelower pavement or foundation of any Well known construction and 2 theupper pavement having asmooth surface. The surface of the foundation ispreferably coated With a Waterproofing material so as to prevent waterfrom seeping doW-n'into the foundation.

`l-n order to provide a suitable support for the rails 1p1-Ovide crossties of the twin typo which are preferably made ofsteel. 'lhe cross tieseach embody -a pair of rail supporting plates 3 and twhich are connectedtransverse tie `plates or channel irons 5 and G. The supporting plates 3and l are provided at `each end with .oppositely disposed pairs of'T-shaped openings 7 and 8, respectively, the purpose of which willhereinafter appear. The cross ties are laid upon and rest securedthereto by rail clams 9, halts l0 illu and nuts 11. The heads of thebolts 10 are substantially rectangular in shape and are of suchV a sizethat the bolts, when in one position, may be inserted through the T-shaped openings and then turned at right angles so as to engage beneaththe edges of the openings. The details of the cross ties and the railclips are disclosed and claimed in my copending application Serial No.303,- 501, filed September 1, 1928.

I then secure along each rail at a distance therefrom a pair of bailleplates or rtrench forming members 12 and 13 which are preferablydisposed at an angle to each other and converge downwardly. The loweredges of the plates 12 and 13 are preferably spot welded to the railsupporting plates 3 and 4. The upper pavement 2 is then laid leaving atrench or Vchannel along each rail, as shown most clearly in Fig. 4. Thetrenches or channels are then filled with a readily removable roadforming material up to the level shown in Fig. 2. The material fillingthe trenches is preferably of a different nature than that forming theremaining portion of the road surface. It is, of course, understood thatthe trenches are filled by pouring the concrete or other materialthereinto While the same is in a plastic condition.

If the rail becomes loosened during the life of the track, the clip canbe tightened Without removing or disturbing any portion of the road bedexcept that immediately adjacent theloosened clip. The longitudinallyextending plates in the* pavement keep cool and tend to prevent movementof the rails dueto temperature changes and serve to relieve orV preventstrain on the rail joints.

These plates also tend to prevent the ties from walking back and forthduring the building period.

When it is desired-to removeV the rail for replacement Vor repair', thematerial filling the trenches is removed and the rail clampsdisconnected. The rail may then be removed leaving the bolts lO-inplace, as shown most clearly in Fig. t. v

Various changes may be made in the details of construction and in themethod of forming the road bed without departing from the spirit of myinvention and it is understood that my invention is limited only inaccordance with the scope of the appended claims. It should also beunderstood that my invention isnot limited to any particular type ofroad surface or foundation and that a road bcdconstruction and methodvof forming the same which will accomplish the objects of the inventionas hereinbefore stated.

Having thus described my invention, what I claim is:

1. A road bed for street railways comprising a road surface having apair of .sir-iced parallel trenches formed therein, bearing plates dispoed within said trenches, tie members connecting said bearing plates andextending transversely of the track, a pair of rails supported by saidbearing plates, rail clamps securing said rails to said bearing plates,a pair of upwardly diverging baiile plates disposed within each of saidtrenches and having their lower edges s iaccd apart a distance greaterthan the width of the base of the rail and connected with said bearingplates and a removable filler substantially filling said trenches, saidbaille plates forming a clear line of demarcation or cleavage betweenthe road bed proper and the rail supporting portion thereof, the railsbcing removable independent of the supporting structure therefor andwithout disturl ing any portion of the road surface except that withinthe trenches.

2. A ioad bed for street railways comprising a road surface having apair of spaced parallel trenches formed therein, the width of said'trenches being greater than the width of the base of a rail, bearingplates disposed within said trenches, tie members connecting saidbearing plates and extending transversely of the track, a pair of railssiuiported by said bearing plates, rail clamps securing said rails tosaid bearing plates, a pair of downwardly converging baille platesdisposed within each of said trenches and having their lower edgesconnected with said bearing plates and a removable filler substantiallyfilling said trenches, said baille plates forming a clear line ofdemarcation or cleavage between the road bed proper and the railsupporting portion thereof, whereby the rails may be removed independentof the supporting structure therefor and without disturbing said plates.

3. A road bed for street or boulevard railways comprising hard surfaceroad having' a pair of spaced parallel trenches formed therein, bearingplates arranged within said trenches, tie members connecting saidbearing plates and evtending` transversely of the track, a pair ofrails` supported by said bearing plates and rigidly connected therewith,a pair of upwardly diverging baille plates arranged within each of saidtrenches and spaced apart a distance at least as great as the widthofthe base of the rails and a .filler substantially filling each of saidtre-nenes, the upper surface of the rails being at substantially thesame level as the surface of the road. the rails being removable fromsaid tra;r ches independent of the supporting structure therefor andwithout disturbing said plates.

Al. A road bed for street or boulevard rail` rays comprising' a hardsurface road having a pair oit spaced parallel trenchefs formed therein,bearing plates arranged within said tranches, tie men eers connectingsaid bearing plates and e ending transversely ol the track, a pair otsupported by said hearing plates and rig-idly connected tl'ierewith, apair ot downwardly cor ing baille plates arranged within each of sintrenches respectively and a liller substantially filling' each ot saidtrenches, said baille plates being spaced apart a distance greater thanthe width oi the base et' the rail, the upper suriiace oil the railsbeing at substantially the same level the surface ol the road, the railsbeingI removable from said trenches independent oil the supporting;structure therefor and without dist rbingi' said plates.

5. fr r; "l supporting; structure ot the charactor describedcoiuprising` a road bed, a plu- 'ality oit ties supported by said roadbed, a pair ot rail: restin on said ties, oppositely disposed pairs oitdownwardly converging plates disposed along' each rail in spacedrelation thereto and prwidingg` a channel ei;- totaling,v along;- eachrail, the lower edges said b plates being` spaced apart a dis la 't rthan the width olf the base et the c,idly connected with said tiesrespectively, a filler substantially lillingI each ol said channels, theremaining space between and alon said rails being,v lill-ed withconcrete subst iially up to the level otl the top ot the rails, therails lein@ removable without disturbing-- any portion ot the road bedexcept said channels and without disturbingl said baille plates.

G., fr rail supporting structure ot the character describedcoinn'isinp,` a base, a plurality oil ties supported by said base, apair of rails resting on said tic..J respectively, oppositcly disposedpairs et downwardly converginei baille plates disposed along each railin spaced relation thereto and providing` a channel extending,` alongeach rail, a tiller substantially iillinp; cach ol said channels, thereA inaininp; space between and along said rails be Filled with roadforming; material subf; tially up to the level of the top ot therailr-i, the rails beingl removable without disturbing; any portion otthe road bed except said channels.

l". A rail supporting structure coinprisi g a base, bearingl platessupported on said base at intervals and adapted to supporta pair ot ratransverse tie members connecting said bearing plates and extending'transversely bev tween the rails, a pair of downwardly con.-

;np; baille plates arranged along each rail in spaced relation theretoand providing a fr incl alone` each rail, a layer ot concrete 3' thespace between and adjacent the 'li eicept said channels and a material4ostantially filling saidchannels, said baille plates being rigidlyconnected with said bearin g plates at their lower ed ges, the railsbeing removable without disturbing the supporting,- structure thereitorand without disturbing said lialile plates.

55. ln a road bed construction for street or boulevard railways, thecombination ot transversely disposed rail supporting ineinbers adaptedto support a pair ot spaced parallel rails, and longitudinally extendingtrench `torining means extending along; each of said rail supportingnien'lbcrmsaid trench lorining members being` spaced apart a dis# Y thanthe base olf the rail and di- F g upwardly so that the rail may heremoved and replaced withoutl disturbingithe road surface between oradjacent u said tranches.

9. In a road bed for street railways, the combination el oppesitelydisposed rail support-ing members adapted to support a pair of railsthereon in spaced relation, transverse tie members connecting;` saidrail supporting` members and longitudinally entending downwardlyconverging,- trench leuning` plates extending; along each of said railswhereby said rails may be removed without disturbing; any portion of theroad surt'ace except that within said trenches.

il). In a road bed construction tor street railways, the combination ota plurality ot transversely disposed rail supporting mein bers adaptedto support a pair oft rails thereon in spaced relation, ot a pair otlongitw dinally exteinlingl downwardly ccnvergjgiu trench forming platesextending,r along,` ich ol said rails in spaced relation thereto.

1l. In a road bed construction iter street railways, `the combination ota plurality o'l transversely disposed rail supporting1 meinbcrs adaptedto support a. pair of rails there on in spaced relation, ot a pair oilongitudinally extending downwardly converging trench forming platesextending,- along7 each oft said rails in spaced rela-tion thereto, saidtrench forming plates having their lower edges rigidly connected to saidrail supportin g members.

p l2. In a road bed construction for street railways, the combination ofa foundation, of transversely disiosed rail supporting meinbersrestingon said :foundation and adapted to support a pair of rails'thereon in spaced relation, means detachably connecting,` said rails tosaid rail supporting members, a pair of downwardly converginglongitudinally extending,V trench forming plates extending along eachrail and having; their lower edges rigidly connected to said railsupporting members, a liller of readily removable material tilling saidtrenches and a street torni ing material iilling the remaining spacebetween and along the track, the rails being,` readily removable fromsaid trenches will l face having a pair of spaced parallel trenchestherein, the opposite side walls of each of said trenches convergingdownwardly, bearing plates disposed within each of said trenches,

. rails supported by said bearing plates and detachably secured thereto,a pair of oppositely disposed upwardly diverging baffle plates disposedwithin each of said trenches and having their lower edges connected withsaid bearing plates and a readily removable initially plastic fillerfilling said trenches, said baille plates forming a line of cleavagebetween the road bed proper and the rail supporting portion thereofwhereby the rails may be readily removed without disturbing any portionof the road surface except that within said trenches.

14. A rail supporting structure of the character described comprising aroad bed having a pair of spaced parallel trenches therein, bearingplates arranged in said trenches and supported by said road bed,transverse tie members connecting said bearing plates, rails detachablysecured to said bearing plates, a, pair'of downwardly converging Abaffleplates arranged within each of said trenches and spaced from each othera distance greater than the width of the base of Vsaid rails, initiallyplastic filler material filling said trenches, means rigidly connectingsaid bailie plates and bearing plates, the rails being removableindependent of the supporting ystructure therefor and without disturbingsaid baflie plates.

` 15. The method of forming a road bed for street or boulevard railwayswhich consists in providing a road surface having a pair ofspacedparallel trenches therein of substantially the same depth as theheight of a standard rail and of greater width than the base of astandard rail, the side walls of said trenches converging downwardlyarranging within each offsaid trenches a plurality of Vrail supportingmembers,.securing the rails to said rail supporting membersrespectively,

i i filling said trenches with an initially plastic Vreadily removableroad forming material and allowing said material to harden and set, andmaintaining a line of cleavage or demarca# tion between the saidtrenches and the remaining portion of the road surface whereby the railsmay be readily removed without disl turbing any portion of the roadexcept that within said trenches.

16. The method of forming a road bed for street or boulevard railwayswhich consists inproviding a road surface having a pair of spacedparallel trenches of substantially the ydepth of a standard rail and ofgreater width arranging within each of said trenches a pair ofdownwardly converging bailie plates the bottom edges of which are spacedfrom said rails, filling the trenches with an initially plastic roadforming material and allowing the material to harden and set whereby therails may be removed without disturbing any portion of the road surfaceexcept that within the trenches.

In testimony whereof, I hereunto aflix my signature.

WILLIAM P. DAY.

